[iancanderson]

Ask HN: What are the correct usages of their, there, and they're?

[rkalla]

(OT, but trying to be helpful for non-native speakers)

their - possessive/ownership. "Their dog bit me!" "Their car is a mess!"

there - place/position. "Put the toys over there."

they're - contraction of "they are". "They are my best friends!" == "They're my best friends!"